"We will be putting together a report that we will set out for the country, what evidence we've seen today: what evidence we have seen in terms of Russian hacking and dumping operation… and yes the issue of collusion with the Trump campaign," Schiff told reporters on Tuesday.
Schiff added he has full confidence the collusion between the Trump team and Russia has taken place.
Republicans on the House Intelligence Committee released an initial report on Monday saying that its yearlong investigation of alleged Russian interference in the 2016 election turned up no evidence of "collusion, coordination, or conspiracy" between the Trump campaign and Moscow.
The lawmaker added House Intelligence Democrats will continue pursuing proof of collusion between the Trump team and the Kremlin. He expressed hope that Special Counsel Robert Mueller is working under no restrictions and the truth will come out sooner rather than late.
The House Intelligence Committee is conducting one of several congressional investigations into alleged Russian interference in the 2016 US election, in addition to the probe by Special Counsel Robert Mueller. Russia has repeatedly denied the allegations of meddling in the US democratic process and trying to swing elections in favor of then-candidate Donald Trump.